anonymous
  • anonymous
trying to use elimination this time to solve system of equations
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
i started it... hopefully im on the right track
anonymous
  • anonymous
you are do you know what to do next?

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anonymous
  • anonymous
okay so i simplified it down to \[17x ^{2}-340x+1428\]
anonymous
  • anonymous
now do i factor?
anonymous
  • anonymous
yep
anonymous
  • anonymous
ill take out 17 as a gcf to make it easier
anonymous
  • anonymous
you actually are pretty smart some kids are pretty slow on this concept but you get it. these are just really hard problems
anonymous
  • anonymous
yes take out 17
anonymous
  • anonymous
haha thanks.. the thing is i actually want to learn how to do it not just be thrown the answer.. i had a real crappy teacher that didnt teach a thing and im trying to take ap calc so i have to self teach myself alot of material (sorry ranting lol) but i factored i got 17(x-6)(x-14)..
anonymous
  • anonymous
@twistnflip
anonymous
  • anonymous
yes thats correct i am in dual enrollment calc now
anonymous
  • anonymous
what do i do next? lol youre a calc god
anonymous
  • anonymous
set them equal to zero ( forget the 17) and solve for x- values i am only in 10th grade lol
anonymous
  • anonymous
omg thats wild... im in 12th.. thats incredible. okay so 6 and 14
anonymous
  • anonymous
but i plug those into the original equations?
anonymous
  • anonymous
yes now plug back in and solve for y and you have got it, one solution will be (0,0) for the 17
anonymous
  • anonymous
|dw:1440540544646:dw|
anonymous
  • anonymous
so i have (0,0) and (6,8)
anonymous
  • anonymous
can i plug the 14 into the same equation? also do i forget the -4
anonymous
  • anonymous
yes and no now when you are solving, just a way to not get confused when you factor out a GCF
anonymous
  • anonymous
so does the -4 count as another (0,0)
anonymous
  • anonymous
no because it is the same point lol, so plug in 14 to the same equation and your solutions will be: (0,0) (6,8) (14, whatever you get)
anonymous
  • anonymous
hope this helped
anonymous
  • anonymous
lol yeah that just registered thank you :) youre the best help
anonymous
  • anonymous
i got (14,8)

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